<table width="100%" cellpadding="0" cellspacing="1" border="0">
  <% @city.plots.each do |plot| %>
    <% if plot.plot_num % 4 == 1 %><tr><% end %>
      <td style="width: 10px; height: 10px; border: solid 1px #000;"><%= link_to plot.id, :controller => 'plot', :action => 'show', :id => plot.id %></td>
    <% if plot.plot_num % 4 == 0 %></tr><% end %>
  <% end %>
</table>